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Converting Strings to Upper/Lower Case in PHP
How To Convert Strings to Upper or Lower Cases? Converting strings to upper or lower cases are easy. Just use strtoupper() or strtolower() functions. Here is a PHP script on how to use them: &lt;?php $string = "PHP string functions are easy to use."; $lower = strtolower($string); $upper = strtou... 2016-10-13, ∼2276🔥, 0💬

What Is a Session in PHP
What Is a Session in PHP? A session is a logical object created by the PHP engine to allow you to preserve data across subsequent HTTP requests. There is only one session object available to your PHP scripts at any time. Data saved to the session by a script can be retrieved by the same script or an... 2016-10-29, ∼2269🔥, 0💬

Invoking a User Function in PHP
How To Invoke a User Function? in PHP? You can invoke a function by entering the function name followed by a pair of parentheses. If needed, function arguments can be specified as a list of expressions enclosed in parentheses. Here is a PHP script example on how to invoke a user function: &lt;?p... 2016-12-28, ∼2268🔥, 0💬

What Is a Session ID in PHP
What Is a Session ID in PHP? A session ID is an identification string of a session. Since there might be multiple visitors coming to your Web site at the same time, the PHP engine needs to maintain multiple sessions concurrently. Session IDs are created and maintained by the PHP engine to identify s... 2016-10-26, ∼2266🔥, 0💬

Removing a File in PHP
How To Remove a File in PHP? If you want to remove an existing file, you can use the unlink() function. Here is a PHP script example on how to use unlink(): &lt;?php if (file_exists("/temp/todo.txt") ){ unlink("/temp/todo.txt"); print("File removed.\n"); } else { print("File does not exist.\n");... 2016-11-20, ∼2258🔥, 0💬

Looping through Returning Rows from a Query in PHP
How To Query Tables and Loop through the Returning Rows in PHP? The best way to query tables and loop through the returning rows is to run the SELECT statement with the catch the mysql_query() function, catch the returning object as a result set, and loop through the result with the mysql_fetch_asso... 2016-10-19, ∼2254🔥, 0💬

Configuration Settings for File Upload in PHP
What Are the File Upload Settings in Configuration File in PHP? There are several settings in the PHP configuration file related to file uploading: file_uploads = On/Off - Whether or not to allow HTTP file uploads. upload_tmp_dir = directory - The temporary directory used for storing files when doin... 2016-10-14, ∼2251🔥, 0💬

Converting Leading Characters to Upper Case in PHP
How To Convert Leading Characters to Upper Case? If you are processing an article, you may want to capitalize the first character of a sentence by using the ucfirst() function. You may also want to capitalize the first character of every words for the article title by using the ucwords() function. H... 2016-10-13, ∼2245🔥, 0💬

Copying a File in PHP
How To Copy a File in PHP? If you have a file and want to make a copy to create a new file, you can use the copy() function. Here is a PHP script example on how to use copy(): &lt;?php unlink("/temp/myPing.exe"); copy("/windows/system32/ping.e xe","/temp/myPing.exe"); if (file_exists("/temp/myPi... 2016-11-20, ∼2244🔥, 0💬

Setting ID Column as Auto-Incremented in PHP
How To Set the ID Column as Auto-Incremented in PHP? Many tables require an ID column to assign a unique ID number for each row in the table. For example, if you have a table to hold forum member profiles, you need an ID number to identify each member. To allow MySQL server to automatically assign a... 2016-10-17, ∼2235🔥, 0💬

Creating a Database in PHP
How To Create a Database in PHP? A database in a MySQL server is a logical container used to group tables and other data objects together as a unit. If you are the administrator of the server, you can create and delete databases using the CREATE/DROP DATABASE statements. The following PHP script sho... 2016-10-20, ∼2234🔥, 0💬

Removing an Empty Directory in PHP
How To Remove an Empty Directory in PHP? If you have an empty existing directory and you want to remove it, you can use the rmdir(). Here is a PHP script example on how to use rmdir(): &lt;?php if (file_exists("/temp/download") ){ rmdir("/temp/download"); print("Directory removed.\n"); } else { ... 2016-11-24, ∼2233🔥, 0💬

Technical Specifications for File Upload in PHP
How To Get the Technical Specifications for File Upload in PHP? File upload technical specifications is provided in "Form-based File Upload in HTML - RFC 1867". You can get a copy from http://www.ietf.org/rfc/rfc186 7.txt.    ⇒ PHP Tutorials ⇐ Configuration Settings for File Upload in PHP ⇑ Upload... 2016-10-14, ∼2231🔥, 0💬

Updating Existing Rows in PHP
How To Update Existing Rows in a Table in PHP? Updating existing rows in a table requires to run the UPDATE statement with a WHERE clause to identify the row. The following sample script updates one row with two new values: &lt;?php include "mysql_connection.php"; $sql = "UPDATE fyi_links SET no... 2016-10-19, ∼2230🔥, 0💬

Specifying Input Values for Checkboxes in PHP
How To Specify Input Values for Checkboxes in PHP? Checkboxes can be used in a form for two situations: As a single switch - One &lt;INPUT TYPE=CHECKBOX ...&gt; tag, with no input value specified. When submitted with button pushed down, you will receive a value of "on". When submitted with b... 2016-11-13, ∼2226🔥, 0💬

Cookies Transported from Browsers to Servers in PHP
How Cookies Are Transported from Browsers to Servers in PHP? Cookies are transported from a Web browser to a Web server in the header area of the HTTP request message. Each cookie will be included in a separate "Cookie:" header line in the following format: GET / HTTP/1.1 Cookie: name1=value1 Cookie... 2016-11-02, ∼2225🔥, 0💬

Retrieving Session ID from the Current Session in PHP
How To Retrieve the Session ID of the Current Session in PHP? Normally, you don't need to know the session ID of the current session. But if you are interested to know the session ID created by the PHP engine, there are two ways to get it: Calling session() function. It will return the session ID va... 2016-10-26, ∼2224🔥, 0💬

Information Needed for MySQL Connection in PHP
What Do You Need to Connect PHP to MySQL in PHP? If you want to access MySQL database server in your PHP script, you need to make sure that MySQL module is installed and turned on in your PHP engine. Check the PHP configuration file, php.ini, to make sure the extension=php_mysql.dll is not commented... 2016-10-20, ∼2223🔥, 0💬

Passing an Argument to a Function in PHP
How To Pass an Argument to a Function? in PHP? To pass an argument to a function, you need to: Add an argument definition in the function definition. Add a value as an argument when invoking the function. Here is a PHP script on how to use arguments in a function(): &lt;?php function f2c($f) { r... 2016-12-24, ∼2219🔥, 0💬

What Is a Cookie in PHP
What Is a Cookie in PHP? A cookie is a small amount of information sent by a Web server to a web browser and then sent back unchanged by the browser each time it accesses that server. HTTP cookies are used for authenticating, tracking, and maintaining specific information about users, such as site p... 2016-11-05, ∼2217🔥, 0💬

Testing Persistent Cookies in PHP
How To Test Persistent Cookies in PHP? If you want to test persistent cookies, you can copy the following PHP script, setting_persistent_cookies.php ,to your Web server: &lt;?php setcookie("LoginName","FYICent er");setcookie("PreferredColor","Bl ue");setcookie("CouponNumber","0747 0433",time()+60... 2016-11-03, ∼2216🔥, 0💬

Assigning a New Character in a String in PHP
How To Assigning a New Character in a String? The string element expression, $string{index}, can also be used at the left side of an assignment statement. This allows you to assign a new character to any position in a string. Here is a PHP script example: &lt;?php $string = 'It\'s Friday?'; echo... 2016-10-13, ∼2216🔥, 0💬

Firefox Storing Persistent Cookies in PHP
Where Does File Firefox Store Persistent Cookies in PHP? If you change Firefox to keep cookies "until they expire", Firefox will store persistent cookies from all Web servers in a single file at: \Documents and Settings\$user\Application Data\Mozilla \Firefox\Profiles\xby7vgys.def ault\cookie.txt.Op... 2016-10-30, ∼2210🔥, 0💬

Where Are Session Values Stored in PHP
Where Are Session Values Stored in PHP? When a value is saved into the current session by one PHP page, the PHP engine must store this value somewhere on Web server, so that the PHP engine can retrieve it back when same visitor comes back to request another PHP page. Where are the session values sto... 2016-10-25, ∼2210🔥, 0💬

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Blockchain Container EPUB General HTML JSON Microsoft Node.js PHP Python RSS Tools Visual Studio Web